A100/100
WILLOW GROVE MILL — Water Quality Report 2026
Serving 3,090 people · Delaware
Water Source
Purchased Groundwater
County
—
System ID
DE0020122
Violations
0
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
This system has a clean compliance history.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About WILLOW GROVE MILL
Is WILLOW GROVE MILL water safe to drink?
WILLOW GROVE MILL water receives a grade of A (100/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has WILLOW GROVE MILL detected?
1 contaminants were tested in WILLOW GROVE MILL's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does WILLOW GROVE MILL have any EPA violations?
No, WILLOW GROVE MILL has zero EPA violations on record. This indicates consistent compliance with federal drinking water standards.
How many people does WILLOW GROVE MILL serve?
WILLOW GROVE MILL serves approximately 3,090 people, Delaware. The system provides water to 1 community: Middletown.
What type of water does WILLOW GROVE MILL provide?
WILLOW GROVE MILL sources its water from purchased groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is DE0020122.
How does WILLOW GROVE MILL compare to other utilities in Delaware?
WILLOW GROVE MILL scores 100/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Delaware state page for a full comparison of water systems.